You are suffering from headaches, sinus infections, and digestive problems? From my own experience (trust me I know) my first suggestion is to evaluate the antibiotics you are on. Some are very upsetting to the digestive system and some will cause headaches. Additionally, if you are taking a lot of products to relieve the digestive symptoms you may be making the problem worse. I would urge you to find a doctor who will treat the headaches (I know this can be hard, most feel you should just deal with it) then see an ENT about your sinus problems. The sinus infections maybe the cause of your headaches and other problems. Good luck.